Home / 28,608.54-39,479.59-15,861.73

Finding the Fourth Proportional to 28,608.54, 39,479.59 and 15,861.73

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Solution

The fourth proportional to 28,608.54, 39,479.59 and 15,861.73 is: 21,889.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,608.54 : 39,479.59 = 15,861.73 : x
  2. Step 2: Convert to fraction form
    28,608.54/39,479.59 = 15,861.73/x
  3. Step 3: Cross multiply
    28,608.54x = 39,479.59 × 15,861.73
  4. Step 4: Simplify right side
    28,608.54x = 626,214,439.35
  5. Step 5: Solve for x
    x = 626,214,439.35/28,608.54
  6. Step 6: Final answer
    x = 21,889.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.